Weft-bobbin.



EPPA H. RYON', OF XVALTEAM, MASSACHUSETTS, .ASSIGNOR TO CROMPTON z: KNOVLES LOOM WORKS, 0F WORCESTER, MASSACHUSETTS, A CORPORATION *OFV MASSACHU- sET'rs. v

WEFtr-nonBIlv.` Y

Y Application filed August 2, 1915. Serial No. 43,088. f

To all whom t may concern." Y

Bc it known that l, Erm H. RYON, a citizen of the United States, vresiding at Waltham, in the county of Middlesex and State of ltassachusetts, have invented a new and useful Weft-Bobbin, of which the .following is a specification.

This invention relates to a weft bobbin particularly designed for used in conjunction with the weft detecting mechanism or feeler of special construction which constitutes the subject matter of my companion application, Serial N o. 43,089, filed on even date herewith.

My present invention consists in the provision of a plurality of radial holes extending through the cylindrical side walls of the barrel portion of a weft bobbin, these holes being so disposed that they will cooperate with a series of detecting members to cause the renewal of the weft supply whenever the weft upon the bobbin in the active shuttle becomes so far exhausted as to uncover said radial holes.

My invention further consists in certain arrangements and combinations of parts which will be hereinafter described and more particularly pointed out in the appended claim.

A preferred formV of my invention is shown in the drawings, in which- Figure 1 is a plan view of a bobbin embodying my invention;

Fig. 2 shows the bobbin in position within a shuttle and coperating with a portion of the detecting mechanism, and

Fig. 3 is a development of the cylindrical barrel portion of the bobbin.

Referring to the drawings it will be seen that the weft bobbin 10 is-of a common'type, having a butt 11 provided'with rings 12 adapted for engagement by a shuttle spring 13, by which the bobbin is positioned and heldV within a shuttle 14 of usual construction. The shuttle 14 is provided with a slot 15 through which the detecting mechanism operates. Y Y

The bobbinlO is provided with the usual hollow cylindrical barrel por-tion 16 adjacent the butt 11, this being avfamiliar feature in weft bobbins intended for usevin socalled feeler looms.

The essential novelty in my improved weft bobbin consists in the provision of a plurality of radial holes 17 extending through the cylindrical side walls of theibarrel portion 16 and communicating with the hollow interior portion of the bobbin. The reative arrangement of the holes 17 inthe barrel 16 is clearly shown in Fig. 3 in which it appears that the holes are arranged in three circumferential series a, a and a2 extending enti-rely around the bobbin, and that they are also arranged in a plurality of parallel spiral curves b, o', b2 and b3. 1t also appears that the holes 17 are of such diameter and are so spaced and arranged relatively to each other that it is impossible to draw a line c extending axially along the surface of the barrel 16 without crossing one or more of the holes 17.

In the preferred form of my invention, the holes 17 are circular and are approximately one-quarter of an inch in diameter, and each hole is spaced from all adjacent holes by approximately the same distance. With this arrangement, I am able to cut the holes entirely` through the walls of the bobin without materially weakening the bob- The weft bobbin 10 is intended for use in coperation with a weft detector or feeler of special construction, said feeler including a detector slide 18 within which a plurality of. detecting members or rods 19 are mounted for longitudinal movement. The entire series of rods 19 is positioned for engagement by the bobbin 10 as it approaches its forward limit of travel and so long as the holes 16 are covered by the weft or filling the detecting members 19 are all forced forwardly by the bobbin to their inoperative position.

When the holes 17 are uncovered by theV substantial vexhaustion of the weft, one or more of the rods 19 will enter certain of the holes 17 and will thus remain in their outer or rear position during the forward movement ofthe bobbin. By thus remaining in their outeror normal positions, they render the weft replenishing mechanism operative.

' The details of this mechanism form no part of the invention embodied in this application and for a full description thereof, reference is made to the companion application above identified. y

It should be noted that the weft bobbin herein described possesses important advantages both in construction and in utility. The holes 17 are of such size and are so aistributed'that they Ydo not unauiy impair the strength of the bobbin. Furthermore,

Y bythe provision of several series yof holes extending entirely Yaround vthe bobbin and so yspaced that one or Vmore of said holes' must always be located in the path of the detecting members, I avoid the'necessity of plac-` ing the kbobbin Within the shuttle in any particular predetermined position. f

The bobbins 10 are of usual construction and the ,ordinary feelerlbobbins previously inuse c'an'be readilyy adapted for use With Y my improved detecting mechanism by providingthem with holes 17 properly spaced and positioned in .the rbarrel portion thereof..

spirit and scope thereof as set forth in the claim. Accordingly I do not Wish to be otherwise limited to the details herein disclosed, but what I do claim is:-

A Weft bobbin having a butt, and a holl'ovx7 portion adjacent said butt, and also having a plurality of circular holes extending entirely through the Wall of said portion to the hollow7 interior thereof, holes longitudinally adjacent being angularly disposed relatively to each other and each hole being approximately one-quarter of an inch -in diameter and being separated from all adjacent holes by distances not substantially less than one-quarter of an inch,

Vwhereby the strength of said bobbin is not materially decreased.

In testimony whereof I have hereunto set my hand.

EPPA H. RYON.

Oopiel of'thispatent rnavbe obtained for Tvc cents each, by addressing the Commissioner of Intenta,

' Washington, D. G. 

